Hydrocarbon generation in relation to thrusting in the sub Andean zone from 18 to 22°S, Bolivia

Formation of the Bolivian eastern cordillera started at the end of the Oligocene and continues to the present day with thrusting affecting the Sub Andean Zone since late Miocene. The "classical" source rock is the Devonian, but the Silurian interval has some potential. Their initial original potential is not high but they are thick (700 m, Los Monos Fm) and may be thicker still due to stacking in thrust duplexes. The three phases of sedimentation during the Tertiary each start with conglomeratic deposits and are discordant over the previous one. Seismic data allow us to correlate these steps with three periods of tectonic accretion : Late Miocene (Tariquia Fm), Pliocene (Guandacay Fm) and Plio-Quaternary (Emborozu Fm). Modelling demonstrates two phases of hydrocarbon generation. A first phase from Devonian to Carboniferous is due to the deepening of the Palaeozoic basin. The second phase of maturation is due to the Tertiary deposits in the foreland and under the piggyback basins. The central aera (Santa Cruz) has never been more deeply buried than during the Palaeozoic and has been a high during the Tertiary. (Résumé d'auteur

An Efficient Energy Savings Schemes using Adjacent Lossless Entropy Compression for WSN

The proposed work aims at designing routing method and data compression algorithm for WSN's. An ad-hoc network (WANET) is considered and based on certain criteria the data is forwarded dynamically. Various parameters such as Compression Ratio, Packet Delivery Rate, Energy consumption are considered to determine the efficiency of the network. One of the primary parameters to be considered in the configuration of Wireless Sensor Networks (WSN) is the energy consumption of the nodes and the data throughput. Since the nodes are controlled by batteries with lower energy limit, it is required to minimize the energy utilization. Henceforth a proficient routing technique in light of LEACH protocol is proposed alongside the utilization of A-LEC data compression strategy.The simulations are carried out through Network Simulator 2 (NS2). The compression code is written in GNU-

Structure of 8B from elastic and inelastic 7Be+p scattering

Motivation: Detailed experimental knowledge of the level structure of light weakly bound nuclei is necessary to guide the development of new theoretical approaches that combine nuclear structure with reaction dynamics. Purpose: The resonant structure of 8B is studied in this work. Method: Excitation functions for elastic and inelastic 7Be+p scattering were measured using a 7Be rare isotope beam. Excitation energies ranging between 1.6 and 3.4 MeV were investigated. An R-matrix analysis of the excitation functions was performed. Results: New low-lying resonances at 1.9, 2.5, and 3.3 MeV in 8B are reported with spin-parity assignment 0+, 2+, and 1+, respectively. Comparison to the Time Dependent Continuum Shell (TDCSM) model and ab initio no-core shell model/resonating-group method (NCSM/RGM) calculations is performed. This work is a more detailed analysis of the data first published as a Rapid Communication. [J.P. Mitchell, et al, Phys. Rev. C 82, 011601(R) (2010)] Conclusions: Identification of the 0+, 2+, 1+ states that were predicted by some models at relatively low energy but never observed experimentally is an important step toward understanding the structure of 8B. Their identification was aided by having both elastic and inelastic scattering data. Direct comparison of the cross sections and phase shifts predicted by the TDCSM and ab initio No Core Shell Model coupled with the resonating group method is of particular interest and provides a good test for these theoretical approaches.Comment: 15 pages, 19 figures, 3 tables, submitted to PR

Studi Implementasi Konsep Green Building pada Gedung Rektorat Universitas Brawijaya

Untuk mencapai visi misi dan mempertahankan penghargaan lingkungan yang telah diraih Kota Malang, maka salah satu caranya adalah penerapan konsep green buildingyang diawali dengan evaluasi bangunan. Sebagai Kota Pendidikan, Kota Malang memiliki Universitas Brawijaya dengan visi menjadi green campus sebagai landmark perguruan tinggi. Pemilihan objek studi penelitian adalah bangunan pusat administrasi Gedung Rektorat UB, karena konsep green building tampak sangat minim diterapkan, terlihat dari bukaan jendela yang besar tanpa shading device dan kondisi parkir kendaraan yang tidak memadai. Penelitian evaluatif dilakukan mengacu pada standar Greenship Existing Building Version 1.1-GBCI, dengan cara observasi pengukuran langsung, simulasi tingkat pencahayaan dan wawancara evaluasi.Standar tersebut terdiri dari 6 kriteria utama yaitu Appropriate Site Development, Energy Efficiency & Refrigerant, Water Conservation, Material Resources & Cycle, Indoor Air Health & Comfort dan Building & Enviroment Management.Setelah dilakukan observasi terhadap obyek, diperoleh nilai 17 poin dari seluruh kriteria yang diujikan. Berdasarkan hasil pengujian muncul rekomendasi desain untuk menaikan peringkat menjadi SILVER yaitu 59 poin. Rekomendasi tersebut antara lain adalah penataan area tapak, konservasi air, penghematan energi dan peningkatan Kenyamanan akustik

A new record of deep-sea caridean shrimp Plesionika narval (Decapoda: Pandalidae) from the south west coast of India

Pandalid shrimp, Plesionika narval (Fabricius, 1787) was recorded from trawl fishing off Kochi (9°59’ N 76°14’E), Kerala, south-west coast of India. The specimens were obtained from deep-sea shrimp trawlers operated at a depth range of 250-300 m. Samples were collected from the Kalamuku Landing Centre on 4th April 2014. 14 males and 12 females in good condition were segregated from the mixed deep-sea shrimp doscards and their measurements recorded (Table 1). Body was transparently pinkred in colour with a pair of sub dorsal and lateral red margined white stripes extending along almost entire body length from anterior carapace to posterior abdomen

Low-lying states in 8B

Excitation functions of elastic and inelastic 7Be+p scattering were measured in the energy range between 1.6 and 2.8 MeV in the c.m. An R-matrix analysis of the excitation functions provides strong evidence for new positive parity states in 8B. A new 2+ state at an excitation energy of 2.55 MeV was observed and a new 0+ state at 1.9 MeV is tentatively suggested. The R-matrix and Time Dependent Continuum Shell Model were used in the analysis of the excitation functions. The new results are compared to the calculations of contemporary theoretical models.Comment: 6 pages, 5 figures, accepted as Rapid Communication in Phys. Rev.

The 1999-2000 seismic experiment of Macas swarm (Ecuador) in relation with rift inversion in Subandean foothills

International audienceWe propose to explain the origin of the double trend in seismicity of the Macas swarm in the Subandean Cordillera of Cutucú (Ecuador) and characterize the corresponding active deformation of that region. For that purpose, seismological and geological data have been used, with the deployment of a temporary seismological array, with geological field observations and image processing. We found that some earthquakes are aligned on a well known NNE SSW trend corresponding to the orientation of the nodal planes of the reverse focal mechanism of the Mw=7.0 1995 Macas earthquake as for its aftershocks. Nevertheless, many smaller events are aligned on an unexpected NNW SSE trend inside the Cutucú Cordillera. We interpret these two orientations of the Macas swarm as linked to Subandean basement thrusts inherited from the inversion tectonics of a NNE SSW trending Triassic Jurassic rift, which has been uplifted and partly extruded in the Cutucú Cordillera. The present partitioning of this part of the Subandean deformation is controlled by pre-existing NNE SSW to NNW SSE Triassic Jurassic normal faults that have been subsequently compressed transpressed and reactivated into reverse faults. Major boundary faults of the rift were NNE SSW oriented and correspond now to some main Subandean thrusts as confirms the focal mechanism of the 1995 main shock located on the eastern border (Morona frontal thrust) and the orientation of its aftershocks. In the Cutucú Cordillera, the double orientation of present swarm can be interpreted as the result of accommodation of deformation along NNW SSE pre-existing faults inside the inverted rift system, linked to the motion of the Morona frontal NNE SSW thrust

Shell structure at N=28 near the dripline: spectroscopy of 42^{42}Si, 43^{43}P and 44^{44}S

Measurements of the N=28 isotones 42Si, 43P and 44S using one- and two-proton knockout reactions from the radioactive beam nuclei 44S and 46Ar are reported. The knockout reaction cross sections for populating 42Si and 43P and a 184 keV gamma-ray observed in 43P establish that the d_{3/2} and s_{1/2} proton orbits are nearly degenerate in these nuclei and that there is a substantial Z=14 subshell closure separating these two orbits from the d_{5/2} orbit. The increase in the inclusive two-proton knockout cross section from 42Si to 44S demonstrates the importance of the availability of valence protons for determining the cross section. New calculations of the two-proton knockout reactions that include diffractive effects are presented. In addition, it is proposed that a search for the d_{5/2} proton strength in 43P via a higher statistics one-proton knockout experiment could help determine the size of the Z=14 closure.Comment: Phys. Rev. C, in pres